• 
  Christopher Eccleston

  Narrator (voice)
• 
  Peter Hook

  Himself
• 
  Clare McGlinn

  Herself - Presenter
• 
  Ana Rosa De Eizaguirre Butler

  Margaret Radclyffe (as Anarosa de Eizaguirre)
• 
  Charlie Allen-Wall

  Alexander Radclyffe
• 
  Elia Carcamo

  Young Margaret
• 
  Joshua Lear

  Young Alexander
• 
  John Francis

  Chaplain

• 
  Martha Scott-Finley

  Herself
• 
  Samantha Smith

  Herself
• 
  Evelyn Vigeon

  Herself
• 
  Elizabeth Richards

  Herself
• 
  Jerome de Groot

  Himself
• 
  Hugh Cherry

  Himself
• 
  Roger Holdsworth

  Himself